Radar antennas' bug?
 

I was exercising in dive bombing on Dover Radar sets. I was aiming at the biggest one, the four-in-a-row. I saw it through the nose of the Ju88, opened airbrakes, started diving and.....the antennas were no more there! And this happens many times. Is there any way to avoid it? And I had several hits, with the bombs just at the bottom of the antennas, but without any apparent damage. Is it normal?

not enough information? MP, SP? single player map? if so just open up the FMB and reapply the radar. re-save should work.

It was indeed a SP mission, with Channel Map. I didn't know this. Do you mean that parts of the landscape may be managed in FMB like objects (planes, vehicles, ships..)?